Weather-strip for metal window sashes and frames.



J. P. GLASER 6L B. W. BURCH.

WEATHER STRIP FOR METAL WINDOW SASHES AND FRAMES.

APPLICATION FILED Amma, 1915.

1,261,920, v l Patented Apr. 9.1918.

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J. P. GLASER L B. W. BUROH.

WEATHER STRIP FOR METAL WINDOW SASHES AND FRAMES.

APPLICATION min AuG.18.1915.

1,26 1 ,920n v Patented Apr. 9, 1918.

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wmm Suva/who@ L flaw/zzk UNITED STATES PATENT OFFICE.

JOSEPH P. GLASER, OF DETROIT, MICHIGAN, AND BENJAMIN W. BURCH, OF BALTIMORE, MARYLAND, ASSIGNOBS TO CHAMBERLIN METAL WEATHER STRIP COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

WEATHER-STRIP FOR METAL WINDOW SASHESAND FRAMES.

To all whom t may concern.'

Be it known that JOSEPH P. GLASER, a citizen of the United States, residing at Detroit, in the county of Wayne and State of Michigan, (whose post-oiice address is 327. Hubbard Ave., Detroit, Mich.,) and BENJA- MIN W. BURoH, a citizen of the United States, residing at Baltimore, State of Maryland, (whose postoiiice address is 123 E. Fayette St., Baltimore, Md.,) have invented certain new and useful Improvements in Weather-Strips for Metal Window Sashes and Frames, of which the following is a specification, reference being had therein to the accompanying drawings. Y

This invention relates to improvements in sheet metal weather strips, and has for its primary object the provision of an improved type of strip adapted to meet the conditions of service attending the employment of metallic window casings and frames therefor.

Experience in the metal window art has demonstrated the fact that weather stripping as ordinarily formed for use in connection with the usual wooden sashes or frames is not altogether practical in the metal window and sash art because of its failure to meet the differing conditions existing in the use of metal in lieu Iof wood. Owing to the relative rigidity of metal frames and sashes, and the corresponding unyielding nature thereof, considerably more flexibility .for freedom of movement between the weather strip members must be afforded, while at the same time preserving sealing engagement therebetween; and for the same reason the surfaces of the metallic parts where uneven 'or irregular cannot be sealed by merely superposing a sheet metal strip thereupon but require the addition of other means to meet the exigencies of the case.

With these considerations in mind, as well as other matters to be later pointed out, the present improvements may be said to reside in the provision of two coperating sheet metal members, one adapted to be mounted on the window frame and the other on the Window easing, associated with means for Specication of Letters Patent.

Patented Apr. 9, 1918.

Application led August 18, 1915. Serial No. 46,073.

attaching the base` members ofthe said weather strip .parts in relation to the casing and sash to which they are respectively attached with interposed packing of suitable nature to seal the points of attachment; and including a special formation of the parts of the weather strip whereby ample flexibility is permitted to accommodate for the shifting or adjusting movements of the sash relative to the frame, while maintaining a constant sealing engagement between the two parts of the strip, and more specifically what is known as a line engagement therebetween as distinguished from'wide surface engagement, the latter resulting in undue friction between the opposing surfaces and operating to some extent against the flexibility desired.

The invention further has for its object the formation of the weather strip members so that they may be placed on the face of the window sash and exposed adJacent portions of the casing to present a neat finished appearance while offering the expected protection under all weather conditions to be met; the arrangement and formation enabling the joining as by mitering of the strip members at the corners to be continuous around the top, bottom and sides of the casing to the end that the said corners are better sealed and protected than has heretofore been found possible.

In the accompanying drawings forming part hereof, we have illustrated two embodiments of the invention which are believed to be sufficient to Iimpart ra full understand-l ing of the improvements, but it will be understood by persons skilled in this art that the invention is capable of embodiment in still other forms and arrangements without departing from the spirit thereof, all as may be in keeping withthe hereto appended claim.

In the drawings:

Figure 1 is a horizontal sectional view, through a metal window frame and associated window sashes, the latter being shown merely in a fragmentary way, provided with the improvedv window stripping;

" Having thus described the invention, what In testimony Whereor` we hereunto aix l is claimed is: Y our signatures.

Aweather stripping for windows compris- JOSEPH P. GLASER.

ing a male member having an attaching base, Witnesses:

5 and a female member for receiving the male JAS. G. MILLER,

member having an attaching flange located L. JULIEN. outwardly beyond its receivmg part, and a BENJAMIN W. l`BURCH. yielding portion extending at an angle Witnesses: across the closed edge and along one side E. CBOKER,

10 of the receiving part and spaced therefrom. IVAN K. STRASBURGER. 

